The western Labrador town of Wabush has lost another councillor, with the third departure in just a week.
Tim Pittman said he no longer has enough time to attend the required number of meetings.
"My decision has nothing to do with personalities or leadership within our current council," Pittman said in an email to CBC News.
"I believe the current council is doing a great job and would like to see someone step into my vacant council position that can give it the time and dedication that it requires."
Marvin Butler and Jessie Tobin tendered their resignations last Thursday.
Mayor Colin Vardy said the sudden departures are not controversial, and that there are enough members on council to run the town's business.
"We've had our ups and downs, without a doubt," Vardy said.
"I don't think this is a question about leadership. I believe this is more about the time commitment that's required versus what people can offer."
Vardy said a byelection date will be set as soon as possible.